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The distance between two waypoints is 150 NM.To calculate the compass heading, the pilot used 2°E magnetic variation instead of 2°W.

Assuming that the forecast W/V applies, what will the off track distance be at the second waypoint?

  • A
    10 NM
  • B
    7 NM
  • C
    14 NM
  • D
    20 NM

The pilot did a mistake and considered 2º E instead of 2º W, which will result in a total track error of 4º.

TKE = (distance off-track x 60) / planned track distance flown)
4º = (distance off-track x 60) / 150
Distance off-track = 10 NM

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